A stone of mass 1kg is tied to the end of a string of 1m long. It is whirled in a vertical circle. If the velocity of the stone at the top be 4m/s. What is the tension in the string?
A
6N
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B
16N
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C
5N
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D
10N
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Solution
The correct option is A6N Given : v=4m/sm=1kgr=1 m